A revision of the genus Ivanauskiella (Lepidoptera: Gelechiidae) Author Bidzilya, Oleksiy Institute for Evolutionary Ecology of the National Academy of Sciences of Ukraine, 37 Academician Lebedev str., 03143, Kyiv, Ukraine; e-mail: olexbid @ gmail. com; ORCID: 0000 - 0001 - 9243 - 2481 Author Karsholt, Ole Zoological Museum, Natural History Museum of Denmark, Universitetsparken 15, DK- 2100 Copenhagen, Denmark; e-mail: okarsholt @ snm. ku. dk; ORCID: 0000 - 0002 - 6969 - 2549 Author Šumpich, Jan National Museum of the Czech Republic, Department of Entomology, Cirkusová 1740, CZ- 193 00 Praha text Acta Entomologica Musei Nationalis Pragae 2023 Acta. Ent. Mus. Natl. Pragae 2023-05-11 63 1 135 164 http://dx.doi.org/10.37520/aemnp.2023.007 journal article 10.37520/aemnp.2023.007 1804-6487 8005865 18E498A5-FF22-46F9-8A95-5C8A3629F945 Ivanauskiella bovis sp. nov. ( Figs 4–7 , 46 , 52 , 73–74 ) Type material. HOLOTYPF: ♀ , MOROCCO : HIGH ATLAS: 7 km S of Ouirgane, 950 m , 31°8′19″N 8°5′51″W , 1.–5.v.2016 , C. Hviid, K. Larsen & D. Nilsson leg. (gen. slide 164/20, OB) ( ZMUC ). PARATYPFS: MOROCCO : HIGH ATLAS: 3 JJ, 27 km NW Taroudant, 670 m , N31.2519, W87.76916, 29.iv.2013 , J. Tabell leg. ( ZMUC ); 3 JJ 6 ♀♀ , 6 km NW Ouirgane, road to Amizmiz, 1050 m , 31°12′29″N , 8°4′23″W , 1.–2.v.2016 , C. Hviid,K.Larsen & D.Nilsson leg.(gen.slide 132/20, OB; 5302 OK) ( ZMUC ); 19 JJ 13 ♀♀ , 7 km S Ouirgane, 950 m , 31°8′19″N , 8°5′51″W , 1.–5.v.2016 , C. Hviid, K. Larsen & D. Nilsson leg. (gen.slide 164/20, OB) ( NMPC , ZMKU , ZMUC ); 1 J 1 ♀ , 3 km S Ouirgane, 950 m , 31°11′31″N , 8°3′16″W , 1.–5.v.2016 , C. Hviid, K.Larsen & D. Nilsson leg. (gen. slide 132/20, OB) ( ZMUC ); 5 JJ, Guelmim-Qued Noun, Sidi Ifni , 29°23′00″N , 10°10′21″W , 5.–7.iii.2017 , sea level, C. Hviid, O. Karsholt, K. Larsen & D. Nilsson leg. (gen. slide 131/20, OB) ( ZMUC ). ANTI ATLAS: 1 J, 12 km E Tafraout, 1690 m , N29.72454, W8.84551, 27.iv.2013 , J. Tabell leg. ( ZMUC ). Diagnosis. This new species is identifiable externally by the uniformly coloured ochreous brown forewing, which has not been observed in other species of Ivanauskiella . The male genitalia of I. bovis sp. nov. are rather similar to those of I. ainella and I. limoniella sp. nov. , but can be separated by the shape of the cornuti in the vesica, which are comparatively short and broad in I. bovis sp. nov. contrary to the slender needle-shaped cornuti in related species. In the female genitalia colliculum with one large tooth situated at 2/3 of ductus bursae and the connected signa with bull skull shaped posterior ‘hornsʼ are diagnostic. Description. Adult ( Figs 4–7 ). Wingspan 10.0– 12.5 mm . Head, thorax and tegulae ochreous brown with slight sheen, frons whitish; labial palpus uniformly brown, with inner surface light brown, scape of antenna and flagellum as head, with indistinct light rings; forewing ochreous brown, fold and some veins look darker in some specimens; hindwing light grey. Variability. The specimens of the type series vary slightly in the colour of the forewing, from lighter to darker ochreous brown. Some specimens have the fold slightly darker and a tendency to a dark spot at the end of the cell. In other specimens there is a diffuse whitish subapical fascia. Male genitalia ( Figs 46 , 52 ). Uncus very slender from 1/3 to 3/4, apex strongly widened, rounded, extending to top of valva, posterior margin weakly serrate; tegumen sub-rhomboid; valva moderately broad, in middle twice as broad as uncus, gradually bent, apical 1/3 and base as broad as top of uncus; sacculus about 1/2 length of valva, as broad as valva in middle; vinculum short; saccus short, triangular; phallus with 10–12 prominent comparatively short and broad cornuti and 8–10 small thorn-shaped spines, distal plate large, of irregular shape. Female genitalia ( Figs 73–74 ). Papilla analis subovate, covered with short hair-like setae and strong basal setae; apophysis posterioris straight, as long as apophysis anterioris; segment VIII weakly sclerotised, subtrapezoidal, slightly broader than long; apophysis anterioris straight; ductus bursae of even width, colliculum with one large thorn-shaped sclerite, situated at 2/3 of ductus bursae; corpus bursae egg-shaped, signa connected: anterior one rounded to weakly elongate plate, posterior one shaped as bull skull with more or less strongly curved horns. Molecular data. No barcode available. Etymology. The species name is genitive of the Latin word bos , bull, and refers to the bull skull shaped signum that is characteristic for the new species. Biology. Host plant unknown. Adults were collected at light at stony localities from March to May – at altitudes from near sea level near the coast of the Atlantic Ocean up to 1690 m in the Anti-Atlas Mts. Distribution. Morocco .